Jason Blundell is a Senior Executive Producer at Treyarch. He has worked on various Treyarch Call of Duty titles, starting from Call of Duty 3. He primarily works on the campaign mode of Treyarch's games, as well as Zombies. Blundell began directing zombies maps starting with Mob of the Dead and Origins in Call of Duty: Black Ops II. Most recently, he became Game Director for Campaign and Zombies modes in Call of Duty: Black Ops III, taking over the position previously held by Jimmy Zielinski.

As of November 2016, Blundell is Co-Studio Head of Treyarch alongside Dan Bunting and Mark Gordon.